C1111133313331323223313331333133313331333131133133313231321333121   >>    C111113331333132322331333133313331333133313113313331323132133312   <<    C1111133313331323223313331333133313331333131133133313231321333123   >>      C1111133313331323223313331333133313331333131133133313231321333122   >>